Multiple Collisions in a pawn

I have a pawn that is a dog as a principal character of my game. I want to put some colisions in him. The capsule collision it’s not appropiate so i tried to do a static mesh from the skeletalmesh and put the collisions in there. It have 2 collisions, a capsule collider for the body, and a sphere collisions for the head. This static mesh is the root of my dog pawn. The collisions didn’t work as well as I thought, because sometimes when collision with something, the pawn stop moving and I have to stop the game and play again.

I tried to put a Capsule collision as a root of my pawn. It worked perfectly witout problems, but as I said earlier, the capsule is not appropiate, so I deduce that the problem is in the static mesh that I use as a root.

Is this the best way to put a collision in the pawn that is not a capsule or sphere colision?

please I’m going crazy with this. Thanks.